Anti-skid heel attachment



FIG. 1 is a perspective view of an anti-skid heel attachment showing mynew design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a left side elevation view, the right side being a mirrorimage thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevation thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for an anti-skid heel attachment, as shown anddescribed.